Rotary disk plow ditching apparatus



Dec. 2, 19 52 c, w 5 2,619,747

ROTARY DISK PLOW DITCHING APPARATUS Filed March 28, 1947 2 SHEETSSHEET1- 9 INVENTOR.

CorneZius Wiens 2, 1952 c, .w s 2,619,747

' ROTARY DISK PLOW DITCHING APPARATUS Filed March 28, 1947 2.Sl-IEETS-SI-IEET 2 III 1,

' INVENTOR. Cor-Relays Wienfi Patented Dec. 2, l952 UNITED STATES PATENTOFFICE 2,619,747 ROTARY DISK PLOW DITCHING APPARATUS Cornelius Wiens,Portland, Oreg.

Application March 28, 1947, Serial No. 737,7 95

1 Claim. 1

This invention relates to plowing implements of the rotary-disc type andhas for one of its principal objects to provide an implement of thischaracter which will work with uniform efficiency throughout an operablespeed range of from approximately 4 to 12 miles per hour and with lessresistance than that of rotary-disc plows now common in the art. This ispartially due to another feature of the invention in the form of meansfor rotating the disc or discs at a greater speed than they wouldnormally rotate if rolled along the ground.

Another object is the provision of a scraper blade and strike boardformed integral with each other and adjustable vertically rearwardly ofthe rotary-disc for the purpose of leveling the bottom and smoothing oneside of the furrow cut by the rotary-disc.

The foregoing and other objects will appear as my invention is morefully hereinafter described in the following specification, illustratedin the accompanying drawings and finally pointed out in the appendedclaim.

In the drawings:

Figure 1 is a top plan view of a plow made in accordance with myinvention. 7

Figure 2 is a sectional side elevation taken along the line 2-2 ofFigure 1.

Figure 3 is an enlarged fragmentary sectional view through therotary-disc and the scraper.

Referring now more particularly to the drawmgs.

In Figures 1 and 2 reference numeral i indicates a frame to whose sidemembers are mounted bearings 2 and 3 to rotatably support a splinedshaft 4 and a shaft 5, respectively. To the outer end of the shaft 4 issecured a driving Wheel 6 for rotating a bevel gear I secured to theshaft 5 and meshing with a companion gear 8 secured to one end of ahollow and internally splined driven shaft 9. Slidably engaged with theshaft 9 is a shaft is externally splined as at II.

For selectively rotating shaft l through the gears 1 and 8, I provide aclutch unit generally indicated at 2 and operable by means of a lever l3mounted to a cross member It. The clutch unit may be of any conventionaltype operable along the splined shaft 4.

Superimposed upon the frame I is a plow beam l turned downwardly at itsoutermost end as shown, and to this end portion I secure by means ofbrackets 15 a bearing shaft 11 upon which is rotatably mounted arotary-disc I8 by means of its hub IS. The center of the disc is formedwith concentric cylindrical housings 20 and 21 disposed one within theother.

The outermost end of the shaft I0 is attached to the housing 2| by meansof a universal joint generally indicated at 22 for imparting rotation tothe disc at a greater speed than it would normally rotate if rolledalong the ground at the same rate of travel as the implement. The beamend of the frame as viewed in Figures 1 and 2 is attached to the towingvehicle such' as a tractor or the like or to the harness of draftanimals.

Also secured to the downwardly turned portion of the beam If: by meansof a U bolt 23 is an arm 24 to whose lowermost end is secured by anysuitable means a scraper blade 25 formed inte ral with a strike board 26which are adjustable as a unit vertically with respect to the beam byadjusting and setting the U bolt at various positions. The strike board,as best illustrated in Figure 1, is in angular relation to, and trailsrearwardly from, the scraper blade in a position parallel to the line oftravel of the implement.

In operation, the rotation of the wheel 6 due to the ratio between thegears 1 and 8, the disc i8 is rotated at a relatively greater speed thanif it were merely rolled along the ground. This rotation of the discenables it to operate quicker and to render itself self-cleaning, and bythis arrangement the plow works efiiciently in all kinds of soil rangingfrom gravel land to blue clay, gumbo, or the like. The scraper blade andstrike board unit trailin the rotary disc may be raised or loweredtolevel the bottom of the furrow transversely by means of the scraperblade 25 and to smooth one side of the furrow by means of the trailingstrike board 26.

While I have shown a particular form of embodiment of my invention, I amaware that many minor changes therein will readily suggest themselves toothers skilled in the art without departing from the spirit and scope'of the invention. Having thus described the invention, what I claim asnew and desire to protect by Letters Patent is:

A plow implement comprising a rectangular frame, two aligned shaftsrotatably mounted across said frame, a driving wheel secured to one ofsaid shafts, means carried by one of said shafts for selectiveengagement with means carried by the other of said shafts for impartingrotation thereto, a gear secured to said other of said shafts forrotation therewith, a driven shaft operatively engaged with said gearand extending rearwardly of said frame, a rotary plow disc attachd tothe outermost end of said driven shaft by means of a universal joint, aplow beam secured at one of its ends to one end of said frame and itsopposite end terminating rearwardly and below said frame, a spindleadjustably mounted 2,619,747 3 4 to said opposite end of said beam toform a bear- REFERENCES CITED ing for said disc, a scraper blade andstrike board The followin references are of record in the formedintegral with each other and adjustably me of this i attached to saidopposite end of said beam, and

said scraper blade arranged parallel to the diam- 5 UNITED STATESPATENTS eter of said disc and the strike board being sub- Number NameDate stantially parallel to the line of travel of said 793,715 DeereJuly 4, 1905 implement whereby said scraper blade will level 955,179Martin Apr. 19, 1910 01f horizontally the furrow cut by said plow disc1,019,804 Kinnick Mar. 12, 19 2 and the strike board will smooth off oneside of 10 2,232,298 Wooley et a1 Feb. 18, 1941 Sand furmw' FOREIGNPATENTS CORNELIUS WIENS. Number Country Date 540,709 France Apr. 21,1922

